ADP5037ACPZ-2-R7

Overview

The ADP5037ACPZ-2-R7 is a power management IC integrating two 800 mA buck regulators and two 300 mA LDOs in a 24-lead, 4 mm × 4 mm LFCSP package. It operates from a main input voltage range of 2.3 V to 5.5 V. The buck regulators support a switching frequency of 3 MHz with forced PWM and auto PWM/PSM modes. Buck output voltages are adjustable from 0.8 V to 3.8 V, while LDO outputs range from 0.8 V to 5.2 V. The device features regulator accuracy of ±1.8% and supports factory programmable or external adjustable outputs.

Feature Summary

• Integrates dual high-performance buck regulators and dual low dropout (LDO) regulators within a compact 24-lead LFCSP package.
• Supports forced PWM mode for consistent noise performance and auto PWM/Power Save Mode (PSM) operation to enhance light-load efficiency.
• Provides high Power Supply Rejection Ratio (PSRR) and low output noise characteristics suitable for sensitive analog circuits.

Applications

• Power supply for processors, ASICs, FPGAs, and RF chipsets
• Portable instrumentation and medical devices
• Space-constrained electronic devices

Procurement Notes

Verify the specific suffix -R7 indicates reel packaging when ordering. Confirm the ACPZ variant corresponds to the industrial temperature range (-40°C to +125°C). Ensure the pinout matches the 24-lead LFCSP footprint in your PCB layout. Check for moisture sensitivity level requirements during storage and reflow soldering processes.

Selection Notes

Select this component when board space is limited and multiple regulated rails are required from a single input source. The 3 MHz switching frequency allows for smaller external passive components compared to lower-frequency alternatives. Consider the thermal dissipation capabilities of the LFCSP package under maximum load conditions for both buck and LDO sections.

Part Context

This part belongs to the ADP5037 family of integrated power management solutions. It is designed to replace discrete regulator arrangements, reducing component count and assembly complexity. The device is manufactured by Analog Devices Inc. and falls under the PMIC category for portable and industrial applications.

Replacement Considerations

Check for ADP5034 or ADP5033 variants if different current ratings or package types are needed. Verify compatibility with existing control signals and output voltage settings before substitution.